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-rw-r--r--contrib/libexecinfo/execinfo_compat.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/contrib/libexecinfo/execinfo_compat.h b/contrib/libexecinfo/execinfo_compat.h
index 85f185dd5f7..ae84cfb1f35 100644
--- a/contrib/libexecinfo/execinfo_compat.h
+++ b/contrib/libexecinfo/execinfo_compat.h
@@ -39,9 +39,9 @@
extern "C" {
#endif
-int backtrace(void **, int);
-char **backtrace_symbols(void *const *, int);
-void backtrace_symbols_fd(void *const *, int, int);
+extern int backtrace(void **, int);
+extern char **backtrace_symbols(void *const *, int);
+extern void backtrace_symbols_fd(void *const *, int, int);
#ifdef __cplusplus
}